I spent quite a bit of time restoring a bunt on walk behind 52" deck, and one thing that I learned is that the wire brushes get to a point where they just polish the rust. Pic 1 is what I started with, 2 is wire brushed ( and I thought mostly rust free), 3 is actually bare metal after sanding with flapper on angle grinder. I spent a lot of time wire brushing once before and then used rust converter, which worked pretty well but doesn't make for the nicest surface to paint and actually have the paint left after mowing. I would just sand it to begin with if I ever did a deck again.



